Roll changing apparatus



July s, 1937. A. J CUNE Ef, AL l 2,086,068

ROLL CHANGING APPARATUS Filed Aug. 14, 1955 5 Sheets-Sheet 1 A.. J.CLINE ET Al. l 2,086,068

ROLL CHANGING APPARATUS Filed Aug. 14, 1935 A5 lsheets-sham; 2

July 6, 1937. A. J. CLINE EVAL ROLL CHANGING APPARATUS Filed Aug. 14,1955 5 Sheets-Sheet 3 xiii-5252i? July 6, 1937. A. J. CLINE ET Al.

l ROLL CHANGING APPARATUS July e, 1937. A. J. @UNE n AL- 2,086,068

- ROLL CHANGING APEVARATUS L 5 Sheets-Sheet 5 Patented July 6, 1937UNTED STATES zessen- ROLL CHAN Gm G APPARATUS Allan J. Cline, Chicago,and Harold L. McCleery, Downers Grove, lll.; said McCleery assigner tosaid Cline Application August 14,

21 Claims.

This invention relates to roll changing apparatus for printing presseswhereby the web from an expiring web roll may be pasted to the web of afull roll while the press is running at substantial speed.

An important object of the 'invention is the prow'sion of a multiple orparallel pasterapparatus in connection With a series of press units anda plurality of folders, whereby roll changes or pasters may be madesimultaneously for all of the press units which may be grouped foroperation with any one folder, and whereby any particular unit may beselectively connected for parallel or multiple operation with thegroupassociated with any desired folder.

More specifically, the invention relates to. a series of press unitshaving a folder disposed at either side thereof, and the object of theinvention is to provide means whereby any particular unit may beselectively connected with the group associated with either the folderat the right thereof or the one at the left thereof in accordance withthe requirements for any particular run of the press.

A further object of the invention is the provision in such an apparatusof indicating means whereby the readiness of any particular unit for themaking of a paster and its relation to the other operating units of thepress are visibly shown.

It is also an object of the invention to provide improved means forcontrolling the tension and braking upon the expiring roll preparato-ryto making a paster. k

A still further object of the invention is the provision of brushesincorporated in or attached to the `usual tension straps and positionedto serve las aV backing against which the pasters may be made.

With these and other objects in vie-w, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts, and in the details of construction hereinafterdescribed and claimed, it being under- Stood that various changes in theprecise embodiment of the invention herein disclosed may be made withinthe scope of what is claimed, without departing from thespirit of theinvention.

Referring to the drawings:

Fig, l is a View, partially insection and parti ally in elevation, of anapparatus in which our invention is embodied, certain parts thereofbeing breken away .for convenience in illustration;

Fig. 2 is an enlarged detail View of the tension 1933, Serial No.685,044

strap positioning mechanism and the Web cutolf device, which parts areshown at the lower left hand corner of Fig. l;

Fig. 3 is a. sectional and elevational view taken substantially on theline 3-3 in Fig. 2; l

Fig. 4 is a perspective view of the brush sec-V tion of one of thetension straps, which section is used as a bac-king against which thepaster are made; Fig. 5 is a wiring diagram illustrating the variouselectrical units including the relays and contactors by which theapparatus is controlled and operated; and v j Fig. 6 is a schematic viewof a number of press units and two folders forming -a part of a line ofunits and folders in the typical arrangement of a unit type press, thisviewshowing diagrammatically vthe paster control station at each 'unitand the directional clutch switches for grouping the units as well asthe parallelingjbusesj forming a part of the electric circuits. A

Upon said drawings, illustrating a preferred embodiment of theinvention, the reference numeral II indicates a reel upon whicharemounted three rolls of paper identified respectively by the numbersI2, I3 and I4, the roll I2 being near# ly exhausted and the web I5thereof being shown running to the press over a guide roller Iii,yaround a floating roller II and under a second guide roller I8supported from an I-beam VI9 forming a part of the sub-structure of thepress, of which an upright 2| is also shown. y The structure of the reelII comprises spaced uprights 22, one of which 'is shown in Fig. 1 of thedrawings, a shaft 23 bearinged in said uprights and-two spiders 24 (oneshown) mounted on said shaft and each havingthree arms25, the rollsbeing mounted between corresponding arms of said spiders. The reel'isadapted to be rotated through gearing (not shown) by means of a motor 25mounted on one of the uprights 22. Tension straps 21, in suitablenumber, are mounted adjacent the reel, being secured at one end tospring bolts 28 slidably mounted in flanges 29 of plates 3I secured toan inclined wall 32 of a pit 33 beneath the center part of the reel, theother ends of said straps being secured to an eccentric drum 34 mountedon a shaft 35 having bearings in brackets 36 depending from the I-beamI9. Said drum is, or may be, driven by means of a torque motor (notshown) of the type disclosed in Cline and lI-lollanderPatent No.1,618,975 to increase or decrease the* tension of the straps on therotating roll as conditions may require. A brush section 3lk is providedin Veach of the Straps 21 for a purpose which will presently appear.

The normal running position of the active roll is that in which the rollI2 is shown in Fig. 1 and the reel is adapted to be rotated in thedirection indicated by the arrow in said Fig. 1 to bring a full roll,shown at I3, into position adjacent the running web I5 preparatory tomaking a paster, provision being made for thereafter moving said rollfurther to cause the same to press the web against the brushes 31 tomake a paster, after which it is moved down into the straps to therunning position of the roll I2 as shown in Fig. 1. These operationswill later be more fully described.

In accordance with the present invention, devices, shown in Figs. 1, 2and 3 of the drawings,

are provided for tightening the straps against shaft 48 which alsocarries a gear 49 driven from the armature shaft 5I of a motor 52mounted on the frame upright 2|. Rotation of the gear 46 incounter-clockwise direction moves said arm 45 from the position shown inFig. l to that shown in Fig. 2 and, in doing so, moves the roller 38against the straps 21, tightening the latter against the roll I2.

A pin 53 protrudes from the pivot connecting the arm 45 with the link 43and, upon movement of said parts to the position just described, saidpin is carried past a dog 54 pivoted to an arm 55 of a latch 56pivotally mounted on the frame part 42. The forward end of said dog 54carries a screw 51, the head of which is held in engagement with thehead of a screw 58 on the arm 55 by means of an expansion spring 59bearing against the opposite end of said dog. A forwardly extending arm6| on the latch 56 is provided with a shoulder 62 adapted to engage aflange 63 on a latch lever 64 pivoted at 65 to the frame part 42, saidforward end 6| of said latch 56 being urged downwardly by means of aspring 66 secured at one end to said-,arm and at the other end to theframe 42. The lever. 64 has a lower arm 61 which is urged in clockwisedirection by a spring 68 secured `at one end to said arm and at theother end to an eye 69 on the frame. An adjustable stop 10 is provided`on the frame to limit the clockwise movement of said arm 61. The lowerend of the arm 61 is pivotally connected with a member 1| adjustablyconnected, by means of a threaded pin 12, with a lever 13 pivotallyconnected at 14 with an arm 15 on a shaft 16 journaled in the free endsof the levers 39. Said shaft 16 carries a number of arms 11 arranged inpairs, the arms of each pair being connected by shafts 18 Each pair ofsaid arms carries a knife 19 secured by screws 8| to a shaft 82extending between` the arms, said knives being of such length that theymay pass between the tension straps 21 to sever the web I5 after apaster has been made. This action is accomplished upon reversal of themotor 52 which takes place simultaneously with or immediately after themaking of the pastel?. Such reversal causes the pin 53 on the arm 45 toforce the dog 54 downwardly thereby turning the latch 56 on its pivotand disengaging the latch shoulder 62 on said latch from the flange 63on the lever 64 which latter is then turned in clockwise direction bythe spring 68, actuating the lever 13 which turns the shaft 16 therebymoving the cutter mechanism from the full line position shown in Fig. 2to the dotted line position shown in said figure. The parts then returnto the position shown in Fig. 1, the member 1| during the course of thismovement moving the lever 64 in counterclockwise direction until theange 63 thereon engages the shoulder 62 on the latch 56. The mechanismis then in position for a repetition of the operation just described.

For the-purpose of preventing breaking of the web when the straps aretightened against the expiring roll at the time of making a paster, thefloating roller I1 is provided, being mounted upon an arm 83 pivoted at84, to an arm 85 pivoted at 86 to a bracket 81 secured to the I-beam I9.A weight 88 is carried upon a rod 89 extending laterally from the pivot84 and tends to move the roller I1 toward the right (viewing Fig. l) Thearm 83 is of angular formation having a part 90 extending upwardly fromand at an obtuse angle to the part of said armY carrying the roller I1,said part 90 being connected by means of a rod 9| with a piston (notshown) of a doubleacting dashpot 92 adapted to check the movement of theroller I1 in both directions. A threaded adjusting rod 93 mounted in abearing 94 carried by the I-beam I9 extends through a threaded openingin the lower partf95 of the arm 85 and is adapted to be located toadjust the position of said arm by means of a rod 96 having a universaljoint connection with said rod 93, as indicated at 91, and carrying atits opposite end a hand wheel 98 so located as to be accessible t0- thepressmen. Operation of said hand wheel moves the arms 85 and 83 thusadjusting one end of the roller I1 for the purpose of taking up slackfrom one sideor the other of the web. It will be evident that in case ofa sudden pull on the web due to the tightening of the straps 21 againstthe expiring roll, or to pressure of the incoming roll against said webat the time of making the paster, or to other causes, the roller I1 maymove toward the left (viewing Fig. l), thereby providing additionalpaper to be drawn into the press and preventing possible snapping off ofthe web with the attendant delay and difculty in again threading thesame through the press. This device, operating in conjunction with theremainder of the paster making apparatus, assures a high degree ofcertainty inV the making of the pasters by reveuting undue strain on theweb, or the forming of slack therein, with resultant danger of the webbeing snapped upon taking up of the slack by the pull of the press.

It will beunderstood that a separate reel or roll support is providedfor each unit of the press and that the auxiliary roll changingapparatus hereinabove described is duplicated for each reel.

Referring now particularly to Figs. 5 and 6 of the drawings, theelectrical control devices of the apparatus and the circuits thereforwill be described.

At each press unit there is provided a control station generallyindicated by the reference numeral IUI. The equipment at each station ismounted on a board |02 and comprises an on and off switch,indicated bythe reference numeral |63, a signal light |64 to indicate that saidswitch has been turned to the on position,

a control switch |95 movable in both directions, 75

CJD

as indicated by the arrows in Fig. 6, a selector switch |55, and signallights |01 and |08, which preferably are red and green, respectively,and serve to indicate that the unit is connected for parallel operationwith certain other units of the press showing the same colored light. Inthe arrangement shown in the drawings, illumination of the green lightindicates that the unit is included in the group associated with thefolder at the right thereof, and illumination of the red light indicatesthat it is included in the group associated with the folder at the left.

The several press units are indicated diagrammatically in Fig. 6 by thereference numeral |09, and the folders by the reference numeral Aspreviously stated, there is a control station |0| for each of the units,and the several stations are connected electrically by paralleling busesindicated at H2 and ||3 in Figs. 5 and 6 of the drawings.

The electrical apparatus at each unit also includes a control panel(shown diagrammatically in Fig. 5) consisting of the various relays andforward and reverse switches for controlling the positioning motor 52and for selecting the parallel operation and commutating the correctcircuits.

For the purpose of determining the direction of the commutator circuitswhen the selector switch is operated to switch from single to paralleloperation, clutch switches diagrammatically illustrated at ||4 in Fig. 6are provided on the main clutches of the press, which serve to connectthe individual press units with an interconnecting shaft, identiiied bythe numeral H5. This directional feature is made automatic by means ofthe circuits shown through the various clutch switches on the press, andmakes it possible to use the paster mechanism for any particular unitwith the folder at the right or the one at the left of the unit, as maybe desired.

Assuming that the parts are in the off or neutral position, as indicatedin Fig. 5, the rst operation is to close the on" switch |03, whichimmediately illuminates the light |04, which preferably is a whitelight, to distinguish from the `green and red lights |01 and |08, theillumination of said light indicating that the apparatus isin readinessfor making a paster by operation of the control switch |05. With theselector switch |05 in the single operating position, neither the redlight |01 nor the green light |08 will be illuminated, and theparalleling relays, indicated in Fig. 5, by the reference numerals ||6and |1, will be normally open, which gives the correct circuits forsingle operation.

With the circuits in this condition, the control switch arm |05, at thecontrol station for the unit to be operated, may be turned incounter-clockwise direction, thereby closing the master switch contact,identified in the drawings by the reference numeral I8, establishing acircuit from the positive side of the line, indicated by the referencecharacter X, to H9, through relay coils |2| and |22 to |23, thencethrough a forward limit switch, identified by the reference numeral |24,to the negative side of the line, identified by the letter Y. The relay|2| is a two-pole relay, one pole of whichcloses a circuit from |25 to|26, which is inter-connected with the main control circuit and servesto decrease the press speed automatically to a predetermined speed atwhich the paster is to be made. The other pole of said relay I2! closesthe circuit from |21 to |28 in parallel with the master switch I I8,thus providing a holding circuit so that the master switch arm |05 neednot be held in the counter-clockwise position. The forward relay |22closes the circuits to the motor 52; which positions the tensioningroller 38 and the web cut-oif device against the straps 21 at a pointdetermined by the operation of the forward limit switch .i 24. Saidforward limit switch |24 and a reverse limit switch, identified by thereference numeral |29,

1 are operated by the arm 45 at the extreme limits of its stroke asshown in Figs. 1 and 2 respectively. When said limit switch opens, theapparatus is in readiness for the making of a paster at a timedetermined by the operator as he observes the press speed and the sizeof the expiring roll. Operation of the switch arm |05 in clockwisedirection closes a second master switch contact I3|, which provides acircuit from 32 to 33 through relay |34 to |35, thus energizing relay|34, which provides its own holding circuit through the pole |36 to |31.In making the paster, the master switch arm must be held in theclockwise position until time to cut the expiring web, as willhereinafter appear.

The momentary contact made at '|25-|25 when the relay |2| is energizedmerely closes the paster relay on the main control panel whichestablishes its own holding circuit and operates a pilot motor of themain control to bring the press speed down to the preset Value. Theincrease in the speed of the press cannot be brought about except byaction of the pressrnan in depressing the increase button on the maincontrol panel, which ordinarily is done as soon as the paster goesthrough the press.

Since the circuit |32 to |33 is closed, current will flow through arectifier |38, through a rotation limit switch |39, positioned on thereel and connected through wire v|68 with the forward contactor of thereel rotation motor 26. This will cause rotation of the reelso that theincoming roll |3 will' be moved against the web I5 and will press thesame against the brush sections 31 of the tension straps 21 thus makingthe paster. When said rotation limit switch |35 opens, the rotation ofthe reel is stopped, but the circuit |33 is still energized from thepositive side Vof the line. From the circuit |33, through a normallyopen contact switch |4| of the master switch |05, a circuit from |42 to|43 is established through the coil of a relay |44. 'I'he said relay |44is a two-pole relay, one pole of which is connected from |45 to |46 toprovide its own holding circuit, the other pole, from l 41 to|48,serving to parallel the back contacts |30 and |40 of the parallelingrelays H6 and H1, so that a relay |49 can ybe energized from the circuit|31 when the master switch arm |05 is returnedto neutral position, thusclosing a master switch .contact .|5I. When `this operationv iscompleted, at the 'time the paster is made, a circuit is establishedfrom |31 through contact poles |52 to |53, which energizes a reversingrelay |54, thus reversing the positioning motor 52. As soon as saidmotor is reversed, the latch 56, 64 is released, allowing operation ofthe sheet cutters 19, as previously described. When the relay |54 isenergized, it closes a normally open interlock |55 to '|55 to provideitsown holding circuit so that the reverse rotation of the positioningmotor will be maintained until the reverse limit switch |29 opens.

A relay |51 is provided to, rotate the new roll into operating positioncelow the brushes 31 in the tension straps 21, this being done as soonas possible after the paster is made. .The coil of this relay isconnected across a dynamic braking Contact |58 to |59 of the reversingmotor relay |54. When the positioning motor 52 is reversed, relay coilI51 is energized in parallel with the armature |6| of said motor 52through contacts |62 to |63, through braking resistance |64, throughcoil |51 to |65 so .that the relay |51 will be closed as long as themotor 52' is running in the reverse direction while bringingv thetensioning roller 38 and webcutters Y19 to the 01T position. After apaster has been made, the relay |51 imparts. rotation to the reelthrough the circuit from |31 to the rectier |38, and normally opencontacts |65 and |61 of said relay |51. The circuit indicated at |68leads to the forward contacter of the control for the reel rotationmotor 2B, as previously stated.

When it is desired to make simultaneous roll changes for a selectedgroup of units, this can be done by paralleling any selected group ofpaster controllers in manner `which will now be described. When themechanical clutch for connecting any selected unit to either folder isclosed, the clutch switch H4 will engage either a contact |59 or acontact I1I, thus selecting the proper paralleling relay for theparticular press combination to be used when the paralleling switchrI isclosed. The circuit illustrated for parallel op-eration is from thecontact |69 or |1I to |12 or |13 through the selector switch |06 to thered light |61 or the green light |08, and

through one or the other of the paralleling relays II6 or ||1. Fourparalleling circuits fro-rn the relays ||6 and II1 are through contacts|14 and |15, respectively, tothe paralleling buses I I2 and ||3,respectively, previously mentioned. These contacts and buses providecommon circuits between the several paster controllers for simultaneousoperation, the buses being connected to said controllers by wiring,indicated at |16 and |11,` respectively,` in Fig. 6. Said controllersare connected to the main line X, Y by means of wires |18 and |19, alsoshown in said Fig. 6. Simultaneous operation of all paster controllerscan be obtained by operating the controls at the control station for anypress unit in the selected group. As previously stated, an illuminatedred or green light at-any control station is an indication that the unitis set up for parallel operation with any group of units showing thesame colored light.

Operation of a reset button I8I at the control station serves to' closethe relay '|54 which reverses the motor 52'and returns the tensioningroller 38 and the sheet-cutting mechanism to the off position withoutmaking a paster, if for any reason it is desired not to complete thepasting operation after it has been started.'

Forward rotation of the'rnotor 52 is obtained by the usual twol polerelay |22 which operates contacts |96` and ISI, and the reverse rotationis obtained by relay |54 which operates contacts |92 and |93. Since themotor 52'operates under a very light load during most of its operation,

a permanent resistance |94 is provided merely to limit the peak currentsthrough armature IGI. Dynamic braking is accomplished through thenormally closed contact IGZ-|63 ofy forward relay |22, throughvresistance |64 and normally closed contact |58-I5ll of reverse relay|54.

It is believed that the operation of the apparatus will be understoodfrom the foregoing description, but it may be bri-ey summarized asfollows:

When the paper is nearly unwo-und from the.

in the art.

rotating webroll I2, lthe operator, by rotation of the usual reelcontrols, rotates the reel so as to bring the incoming roll I3 to apoint approximately two inches from the web I5. The master switch handleIE5 is then turned in counterclockwise direction which, through thecircuits illustrated in Fig. 5 and previously described, brings thetensioning roller 38 and the sheet cutters 19 to the full line positionshown in Fig. 2. This operation will have also slowed down the press tothe paster speed and, when the operator observes that the roll has rundown as far as it can safely go, he turns the arm |65 in clockwisedirection, which, through the electrical devices above describe-d, movesthe roll |3 against the web I5, pressing the latter against the brushsections 31 of the straps 21, the roll being stopped in contact withvthe brushes by limit switch |39. The leading edge of the webof saidroll |3 has glue applied thereto, and is positioned just above the pointof contact of the roll with said brushes. The motion of the web l5starts the roll I3 rotating and when'said glue comes into contact withsaid web I5, a paster is made, after which the web from the expiringroll |2 is immediately out off by means of the knives 19, which movefrom the full line position to-the dotted line position shown in Fig. 2upon reversal of the positioning motor 52. TheY roll I3 is'then quicklymoved further down into the straps 21 through the action of therelay|51, as previously described, the tensioning roller 38 and thesheetcutting mechanism being at the same time returned to the offposition shown in Fig. 1 of the drawings.

The-advantages of the paralleling or multiple feature o-f the invention,as well as the feature of selectivity, and the other features abovementioned, will be apparent to those who are skilled Assuming that apress. combination of five units is being operated, if all the rolls ranout at different'times, there would be fifteen roll changes per hour, inaccordance with the practice` usually followed in the past, since itusually takes about twenty minutes for a roll to run out. This means avery considerable loss of time, and also means that a large number ofpapers are spoiled, since in ordinary practice six to ten papers have tobe thrown out each time a paster is made. Assuming a loss of eight paperfor each paster, there would be a loss of forty papers in makingindividual roll changes on a v'e roll press, whereas there would be aloss of only eight if the pastors were made simultaneously for all fiveunits in accordance with our invention. Mostlarge newspaper ofces arenow equipped with means for rewinding rolls so that if :a substantialamount of paper is left on any roll it may be YWound into full rolls,which may later be used in the ordinary manner. There is, therefore, noneed for loss of White paper due to the making of the-pasterssimultaneously in the manner above described, and the savingV of printedpapers, as well as the increase in papers printed per hour, will be ofgreat advantage, particularly in the printing of newspapers of largecirculation.

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and it will beapparent that various changes may beY made in the form, construction andarrangement of the parts without departing from the spirit and scope ofthe invention, or sacricing all of its material advantages, theconstruction hereinbefore described full roll into contact with the webrunning from an expiring roll and for pasting said webs together, aplurality of operating folders each constructed to receive the webs froma group of press units, and means for selectively connecting the pastermaking'device of any unit for operation in unison with the paster makingdevices of the units in any desired group.

2. A roll changing apparatus for multiple unit printing pressescomprising a plurality of roll supports, one for each unit of the press,pastermaking devices associated with each said support for moving thesame to bring the web of a full roll into contact with the web runningfrom an expiring roll and for pasting said webs together, a plurality of,operating folders each constructed to receive the webs froma group ofpress units, control means for operating the paster making devices ofall units of any group in unison, and means for selectively connectingthe paster making device of any unit with the paster making devices ofthe units in any desired group.1

3. A roll changing -apparatus'for multiple unit printing pressescomprising a plurality of roll supports, one for each unit of the press,pastermaking devices associated with each said support for moving thesame to bring the web of a full roll into contact with the webr runningfrom an expiring rolland for pasting said webs together, a pair ofoperating folders; each constructed to receive the webs from a group ofpress units, and control means whereby the paster making device of anyunit may be selectively connected to operate in unison with the pastermaking devices of the units in the group associated with either onefolder or the other.

V4. A roll changing apparatus for printing presses comprising aplurality of roll supports, one for each unit -of the press,paster-making devices associated with each said support for moving thesame to bring the web of a full roll into contact with the webrunningfrom an eX- piring rollV and for pasting said webs together,control means for operating said paster-making devices singly or vanumber thereof in unison whereby roll changes may be made for one unitat a time or for a number thereof simultaneously, and means includingdirectional switches operable by the main press clutches whereby thepaster-making devices for selected groups of units may be connected formultiple operation.

5. A roll changing apparatus for multiple unit printing pressescomprising a plurality of roll supports, one for each unit of the press,pastermaking devices associated with each said support for moving thesame to bring the web of a full roll into contact with the web runningfrom an expiring roll and for pasting said webs together, control meansfor operating said pastermaking devices singly or a group thereof inuni-v son whereby roll changes may be made for one unit at a time or fora number thereof simultaneously, and means whereby the paster making theother thereof,.as desired.

.6. A roll' changing. apparatusv for printing presses comprising aplurality of roll supports, one for each unit of the press,paster-making devices associated with each said support for moving thesame to bring the web of a full roll into contact with the web runningfrom an expiring roll and for pasting said webs together,

control means for operating said paster-making devices singly or anumber thereof in unison whereby roll changes may be made for one unitat a time or for a number thereof simultaneously, means whereby thepaster-making devices for selected groups of units may be connected forparalleloperation and whereby the paster-making devices for anyparticular unit may be used in` connection with a folder at either oneside or the other thereof, and signal means for visibly indicating whichunits are grouped together forv multiple operation and the direction ofthe folder for the group with reference to any particular unit of thegroup.

'7. A roll changing apparatus for multiple unit` printing pressescomprising a plurality of roll supports, one for each unit ofthe press,pastermaking devices associated with each said support for moving thesame to bring the web of a full roll into contact with the web runningfrom an expiring roll and for pasting said webs together, groups ofpress. units, control means for operating the paster making devices ofvall units of a group in unison, and means whereby any particular unitmay be included in'one group or another, as desired.

8.y A roll changing apparatus yfor printing presses comprising aplurality of roll supports, one for each unit of the press,paster-making devices associated with each said support for moving thesame to bring the web of a full roll into Contactl with the web runningfrom an expiring roll and for pasting said webs together, an electricalcontroller for the paster devices of each unit including an off and onswitch and a switch for selecting single or multiple operation, meansfor interconnecting the controllers for a selected group of unitswhereby roll changes for all thev units of said group Amay be' madesimultaneously, and means whereby said controllers may be operated bythe pressman at will to effect such simultaneous roll changes at suchstage in the unwinding of the rolls as he may select. Y

9. A roll changing apparatus for printing presses comprising a pluralityof roll supports, one for each unit of the press, paster-making devicesassociated with each said support for moving the same toI bring the webvof a full roll into contact with the weby running from an expiring rolland for pasting said webs together, an electrical controller for thepaster devices of each unit including an` off and on switch, a switchfor selecting single or multiple operation and a master switch` forcontro-lling the opera-A tion of said paster devicesk in predeterminedse quence, means for interconnecting the con' engage Aa roll from whichVthe web is running tol the press, means for moving said support to rolland themakingof a paster between the web thereof and'said running web,means movable against said straps to tighten the same against saidrunning Yroll preparatory to making the paster,A a motor for operatingsaid means, and av control station including controls operativelyconnected with said motor for causing forward and reverse rotation ofthe latter tomove said means against and away from said straps.

y1l. A roll changing apparatus for printing presses comprising aroll'support, tension straps mounted adjacent said support and adaptedto engage a'roll from which the web is running to'the press, means formoving said support to bring" a full roll. having adhesive thereon,against the running web to cause rotation of said roll andthe making .ofa paster between the'web thereof and said running web, means movableagainst said straps at a point beneath the running roll to tighten the`same against said running roll preparatory to making the paster,

aV motor for operating saidmeans, and a control Station includingcontrols operatively connected with said motor for causing forward andreverse rotation of the latter to move said means against and away fromsaid straps. l

12. A roll changing apparatus for printing presses comprising a rollsupport, tension straps mounted adjacent said support. and adapted toengage a roll from which the web is running to the press, means formoving said supportto bring a full roll, having adhesive thereon,against the running web to cause rotation of said roll and the makingofa paster between the web thereof and said running web, and a web cutoffmechanism including a sheet-breaker, means for carrying saidsheet-breaker toward and away from the web, a reversible motor foroperating said last-mentioned means, a latching device for holding saidsheet-breaker out of action until reversal of said motor after saidmeans has reached the forward limit of its movement, saidv device beingoperable upon such reversal of the motor to release said sheet-breakerfor action, andV means for thereupon moving the sheetbreaker into theweb with a quick, snap action to sever said web at a point closelyfollowing the paster.

13. A roll changing apparatus for printing presses comprising a supportfor a plurality of rotatably mounted web rolls, one of said rolls beingnormally active by having the web thereon drawn into the press, meansfor moving another of said rolls into engagement with the web runningfrom said 'active roll to make a paster between said Webs, provided asuitable adhesive has been applied-to one thereof, and means forsevering Vthe web proceeding from the expiring roll after said pasterhas been made, said means comprising a sheet-breaker, means for carryingsaid sheet-breaker toward and away from the web, a motor for operating,said last-mentioned means, a circuit including bring a fullrolL--having adhesive thereon,

I 14, A roll vrchanging apparatus for printing' against the-runningweb'to cause rotation .of said` presses comprising a roll support,tension straps mounted adjacent said support'and adapted to engage arollifrorn which A,the web is running to thepress, means for moving saidsupport to bring a full roll, Ahaving adhesive thereon,V

reverse rotation of said motor to cut oft the webl of the rexpiring rollafter the paster has been made. V

15. A roll changing apparatus for printing presses comprising a rollsupport, tension straps mounted adjacent said support and adapted toengagea roll from `which the web is running to the press, meansfor-moving said support to bring a full roll, having adhesive thereon,against the running web to cause rotation of said roll and the making ofa paster between the web thereof andsaid running web, means movableagainst said straps to tighten the same against said running rollpreparatory to making the paster, a motor for operating said means, acontrol station including Ycontrols operatively connected with saidmotor for causing forward and reverse rotation of the` latter to movesaid means l' against and away from said straps, and web-cuttingmechanism movable by said motor toward and away from the web with saidstrap-tightening means and including a latch adapted to hold saidmechanism out of action until said motor is reversed after said meanshas reached the forward limit of its movement and the paster has beenmade, said latch being operable upon such reversal of the motortofrelease said mechanism and the latter being operable, when soreleased, to sever the web at a point closely following the paster.r

16. A roll changing apparatus for printing presses comprising aV movablesupport for a plurality of web rolls, tension means for engaging thesurface of a roll carried by said support, means for making. apasterbetween the web of an expiring roll andthe web of a full roll carried bysaid support, means acting upon said tension means at aY point outsidethe area of contact thereof with the roll for increasing the brakingeffect of said tension means upon the expiring roll preparatory tomaking the paster and a web controlling device including fixed guiderollers about which the web passes in traveling to the press and aoating roller positioned in a loop in the web between said guide rollersand movable toward the latter upon substantial increase in the tensionon the web, thus supplying paper from said loop to compensate for suddenretarding of the roll, thereby preventing breaking of the web.

17. A roll changing apparatus for printing presses comprising a supportfor a plurality of rotatablyrmounted web rolls, one of said rolls beingnormallyl activelbyl having the web thereof roll, said strap having abrush section therein against which said web may be pressed by saidincoming roll to make a paster between the eX- piring web and the web ofthe new roll, provided a suitable adhesive has been applied to one ofsaid webs.

18. A roll changing apparatus for printing presses comprising a supportfor a plurality of rotatably mounted web rolls, one thereof being activeby having the web thereof drawn into the press, a tension strap mountedadjacent said support and adapted to engage the surface of the activeroll, a brush section in said strap, means for moving another of saidrolls into engagement with the web running from said active roll andpressing the same against said brush section of the tension strap tomake a paster between said webs, provided a suitable adhesive has beenapplied to one of said webs, electrical means for automatically stoppingsaid new roll in correct position to make a paster against said brush,means for automatically cutting o the web of the expiring roll after thepaster has been made and electrical means for thereafter automaticallymoving said new roll further into said strap to a running positionbeyond said brush.

19. A roll changing apparatus for printing presses comprising aplurality of roll supports, one for each unit of the press, each of saidsupports being adapted to carry a plurality of web rolls, tension meanspositioned adjacent each of said supports adapted to control therotation of the active roll, paster-making devices associated with eachsaid support, including means acting upon said tension means at a pointoutside the area of contact thereof with the roll for increasing thetension of said tension means upon the active roll preparatory to makinga paster between the web of an expiring roll and the Web of areplenishing roll, means for moving the support to a predetermined pointto press the re-u plenishing rollagainst the web from the expiring rollto make the paster, means for thereafter automatically cutting off thewebr from the expiring roll, means for then moving the new roll to arunning position with the same in engagement with said tension means,and control means whereby the aforesaid plaster-making devices for aplurality of said units may be operated sirnuln taneously. Y

20. A roll Ychanging apparatus forA printing presses comprising aplurality of roll supports, one for each unit of the press, pastermakingdevices associated with each said support for moving the same to bringthe web of a full roll into contact with the web running from theseveral expiring rolls and for pasting said webs together, control meansfor operating a plurality of said paster-making devices in unison,whereby roll changes for a number of said units may be madesimultaneously, and means actingl upon said tension means at a pointoutside the area of contact thereof with the roll for automaticallyincreasing the tension on each of the expiring rolls just prior to themaking of the paster.

21. A roll changing apparatus Yfor printing presses comprising a supportfor a plurality of rotatably mounted web rolls, one of said rolls beingnormally active by having the web thereof drawn into the press, meansfor moving another of saidv rolls into engagement with the webrunningfrom said active roll, tension means for controlling the rotation ofsaid active roll, and means including a brush element attached tosaidtension means and adapted to serve as a backing against which said webmay be pressed by said incoming roll to make a paster between theexpiring web and the web of the new -roll provided a suitable adhesivehas been applied to one ofA said rolls.

ALLAN J. CLINE. HAROLD L. MCCLEERY.

